12172005

素因数分解:

$3^3\times 5^1\times {\mathrm{90163}}^1$

素因数の和:90177

約数の個数: 16

約数和(自身を含む): 21639360

約数和(自身を除く): 9467355

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 90163, 270489, 450815, 811467, 1352445, 2434401, 4057335, 12172005]

約数ペア:

[(1, 12172005), (3, 4057335), (5, 2434401), (9, 1352445), (15, 811467), (27, 450815), (45, 270489), (135, 90163)]